Width of Big End Cap of Connecting Rod given Bending Stress in Cap Solution

STEP 0: Pre-Calculation Summary
Formula Used
Width of Big End Cap = Inertia Force on Bolts of Connecting Rod*Span Length of Big End Cap/(Thickness of Big End Cap^2*Bending Stress in Big End of Connecting Rod)
bc = Pi*l/(tc^2*σbig)
This formula uses 5 Variables
Variables Used
Width of Big End Cap - (Measured in Meter) - Width of Big End Cap is the width of the big end cap of the connecting rod.
Inertia Force on Bolts of Connecting Rod - (Measured in Newton) - Inertia Force on Bolts of Connecting Rod is the force acting on the bolts of the connecting rod and cap joint due to the force on the piston head and its reciprocation.
Span Length of Big End Cap - (Measured in Meter) - Span Length of Big End Cap of a connecting rod is the distance between the bolt centers of the bolts used for fastening the big end cap.
Thickness of Big End Cap - (Measured in Meter) - Thickness of Big End Cap is the thickness of the big end cap of the connecting rod.
Bending Stress in Big End of Connecting Rod - (Measured in Pascal) - Bending Stress in Big End of Connecting Rod is the stress induced in the big end cap of a connecting rod when an external force or moment is applied to the element, causing the element to bend.
STEP 1: Convert Input(s) to Base Unit
Inertia Force on Bolts of Connecting Rod: 8000 Newton --> 8000 Newton No Conversion Required
Span Length of Big End Cap: 80 Millimeter --> 0.08 Meter (Check conversion ​here)
Thickness of Big End Cap: 12 Millimeter --> 0.012 Meter (Check conversion ​here)
Bending Stress in Big End of Connecting Rod: 58 Newton per Square Millimeter --> 58000000 Pascal (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
bc = Pi*l/(tc^2*σbig) --> 8000*0.08/(0.012^2*58000000)
Evaluating ... ...
bc = 0.0766283524904215
STEP 3: Convert Result to Output's Unit
0.0766283524904215 Meter -->76.6283524904214 Millimeter (Check conversion ​here)
FINAL ANSWER
76.6283524904214 76.62835 Millimeter <-- Width of Big End Cap
(Calculation completed in 00.004 seconds)

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Big End Cap and Bolt Calculators

Inertia Force on Bolts of Connecting Rod
​ LaTeX ​ Go Inertia Force on Bolts of Connected Rod = Mass of Reciprocating Parts in Engine Cylinder*Angular Velocity of Crank^2*Crank Radius of Engine*(cos(Crank Angle)+cos(2*Crank Angle)/Ratio of Length of Connecting Rod to Crank Length)
Maximum Inertia Force on Bolts of Connecting Rod
​ LaTeX ​ Go Maximum Inertia Force on Bolts of Connecting Rod = Mass of Reciprocating Parts in Engine Cylinder*Angular Velocity of Crank^2*Crank Radius of Engine*(1+1/Ratio of Length of Connecting Rod to Crank Length)
Core Diameter of Bolts of Big End Cap of Connecting Rod
​ LaTeX ​ Go Core Diameter of Big End Bolt = sqrt(2*Inertia Force on Bolts of Connecting Rod/(pi*Permissible Tensile Stress))
Maximum Inertia Force on Bolts of Connecting Rod given Permissible Tensile Stress of Bolts
​ LaTeX ​ Go Inertia Force on Bolts of Connecting Rod = pi*Core Diameter of Big End Bolt^2*Permissible Tensile Stress/2

Width of Big End Cap of Connecting Rod given Bending Stress in Cap Formula

​LaTeX ​Go
Width of Big End Cap = Inertia Force on Bolts of Connecting Rod*Span Length of Big End Cap/(Thickness of Big End Cap^2*Bending Stress in Big End of Connecting Rod)
bc = Pi*l/(tc^2*σbig)

Material of bolts for big end cap

The bolts and the big end cap are subjected to a tensile force which corresponds to the inertia force of the reciprocating parts at the top dead center on the exhaust stroke. The bolts may be made of high carbon steel or nickel alloy steel. Since the bolts are under repeated stresses but not alternating stresses, therefore, a factor of safety may be taken as 6.

How to Calculate Width of Big End Cap of Connecting Rod given Bending Stress in Cap?

Width of Big End Cap of Connecting Rod given Bending Stress in Cap calculator uses Width of Big End Cap = Inertia Force on Bolts of Connecting Rod*Span Length of Big End Cap/(Thickness of Big End Cap^2*Bending Stress in Big End of Connecting Rod) to calculate the Width of Big End Cap, Width of big end cap of connecting rod given bending stress in cap is the width of the big end cap of the connecting rod. Width of Big End Cap is denoted by bc symbol.

How to calculate Width of Big End Cap of Connecting Rod given Bending Stress in Cap using this online calculator? To use this online calculator for Width of Big End Cap of Connecting Rod given Bending Stress in Cap, enter Inertia Force on Bolts of Connecting Rod (Pi), Span Length of Big End Cap (l), Thickness of Big End Cap (tc) & Bending Stress in Big End of Connecting Rod big) and hit the calculate button. Here is how the Width of Big End Cap of Connecting Rod given Bending Stress in Cap calculation can be explained with given input values -> 76628.35 = 8000*0.08/(0.012^2*58000000).

FAQ

What is Width of Big End Cap of Connecting Rod given Bending Stress in Cap?
Width of big end cap of connecting rod given bending stress in cap is the width of the big end cap of the connecting rod and is represented as bc = Pi*l/(tc^2*σbig) or Width of Big End Cap = Inertia Force on Bolts of Connecting Rod*Span Length of Big End Cap/(Thickness of Big End Cap^2*Bending Stress in Big End of Connecting Rod). Inertia Force on Bolts of Connecting Rod is the force acting on the bolts of the connecting rod and cap joint due to the force on the piston head and its reciprocation, Span Length of Big End Cap of a connecting rod is the distance between the bolt centers of the bolts used for fastening the big end cap, Thickness of Big End Cap is the thickness of the big end cap of the connecting rod & Bending Stress in Big End of Connecting Rod is the stress induced in the big end cap of a connecting rod when an external force or moment is applied to the element, causing the element to bend.
How to calculate Width of Big End Cap of Connecting Rod given Bending Stress in Cap?
Width of big end cap of connecting rod given bending stress in cap is the width of the big end cap of the connecting rod is calculated using Width of Big End Cap = Inertia Force on Bolts of Connecting Rod*Span Length of Big End Cap/(Thickness of Big End Cap^2*Bending Stress in Big End of Connecting Rod). To calculate Width of Big End Cap of Connecting Rod given Bending Stress in Cap, you need Inertia Force on Bolts of Connecting Rod (Pi), Span Length of Big End Cap (l), Thickness of Big End Cap (tc) & Bending Stress in Big End of Connecting Rod big). With our tool, you need to enter the respective value for Inertia Force on Bolts of Connecting Rod, Span Length of Big End Cap, Thickness of Big End Cap & Bending Stress in Big End of Connecting Rod and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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